Aphasia Flashcards
(44 cards)
3 types of Aphasias
Fluent
Nonfluent
Subcortical
What is the most common cause of aphasia
cerbralvascular accidents
This type of stroke is caused by a blocked or interrupted blood supply to the brain
Ischemic Strokes
blockage or interruption may be caused by two kinds or arterial disease
thrombosis or Embolism
This is a collection of blood material that blocks the brain
thrombus
this a traveling mass of arterial debris or a clump of tissue from a tumor that gets lodged in a smaller artery and thus blocks the flow of blood
embolism
These strokes are caused by bleeding in the brain due to ruptured blood vessels
hemorrhagic strokes
A general definition of aphasia
a loss or impairment of language caused by a recent brain injury. comprehension and expression of language as well as reading and writing may be impaired
Caused by damage to the posterior inferior frontal gyrus of the left hemisphere of the brain.
Brocas aphasia
Brocas area is supplied by what artery
upper division of the middle cerebral artery
Can you have Brocas aphasia with an intact Brocas area?
yes
What are some different types of nonfluent aphasias?
Brocas,
Transcortical Motor Aphasia,
Mixed transcortical Aphasia
Global Aphasia
This nonfluent variety of aphasia is caused by lesions in the anterior superior frontal lobe often below or above Broca’s area which is not affected
Transcortical motor Aphasia
This nonfluent aphasia has intact repetition skills
Transcortical Motor Aphasia
these patients tend to exhibit such motor disorders as rigidity of upper extremities, absence or poverty of movement (akinesia), lowness of body movement (bradykinesia), buccofacial apraxia, and weakness of the legs.
Transcortical Motor Aphasia
this variety of nonfluent aphasia is caused by lesions in the watershed area of the arterial border zone
Mixed Transcortical Aphasia (MTA)
this non fluent aphasia is characterized by severe echolalia
Mixed Transcortical Aphasia (MTA)
this non fluent aphasia is characterized by severely impaired auditory comprehension
Mixed Transcortical Aphasia (MTA)
caused by extensive lesions affecting all language areas (the perisylvian region)
Global Aphasia
What are the different types of fluent Aphasias
Wernickes Aphasia
Transcortical Sensory Aphasia
Conduction Aphasia
Anomic Aphasia
this Aphasia is caused by lesions to the wernicke area (the posterior portion of the superior temporal gyrus in the left hemisphere of the brain)
Wernickes aphasia
Wernickes area is supplied by what artery
the posterior branch of the left middle cerebral Artery
these patients are usually free from obvious neurologic symptoms such as paralysis
Wernicke Aphasia
this fluent aphasia is caused by lesions in the tempo parietal lobe especially in the posterior portion of the middle temporal gyrus
Transcortical Sensory Aphasia